body, html
  line-height: 1
  font-weight: 200
  font-family: 'pingFang SC', 'STHeitiSC-Light', 'Helvetica-Light', arial, sans-serif

.clearfix
  display: inline-block
  &:after
   display: block
   content: "."
   height: 0
   line-height: 0
   clear: both
   visibility: hidden

@media(-webkit-min-device-pixel-ratio: 1.5), (min-device-pixel-ratio: 1.5)
  .border-1px
    &::after
      -webkit-transform: scaleY(0.7)
      transform: scaleY(0.7)

@media(-webkit-min-device-pixel-ratio: 2), (min-device-pixel-ratio: 2)
  .border-1px
    &::after
      -webkit-transform: scaleY(0.5)
      transform: scaleY(0.5)
